Pets. According to JAVMA News, a publication of the American Veterinary Medical Association, roughly 60% of U.S. households own one or more pets. Four U.S. households are selected at random. Use Table XI in Appendix A to solve the following problems. a. Find the probability that, of the four households sampled, the number that own one or more pets is exactly three; at least three; at most three.b. Find the probability distribution of the random variable X, the number of U.S. households in a random sample of four that own one or more pets.c. Without referring to the probability distribution obtained in part (b) or constructing a probability histogram, decide whether the probability distribution is right skewed, symmetric, or left skewed. Explain your answer.
Pets. According to JAVMA News, a publication of the American Veterinary Medical Association, roughly 60% of U.S. households own one or more pets. Four U.S. households are selected at random.
Use Table XI in Appendix A to solve the following problems.
a. Find the probability that, of the four households sampled, the number that own one or more pets is exactly three; at least three; at most three.
b. Find the probability distribution of the random variable X, the number of U.S. households in a random sample of four that own one or more pets.
c. Without referring to the probability distribution obtained in part (b) or constructing a probability histogram, decide whether the probability distribution is right skewed, symmetric, or left skewed. Explain your answer.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images
